Owned by Henk Van Der Wal.
At this instance we will deal with machines number 1 and 2, using number 1 engine.
45mm Bore, 50mm Stroke. It is of the high pressure variable
expansion variety, developing 8HP, with popet valves and a
180º crank shaft. The inlet opening valve from 0-75%.
The machine will go practically anywhere on a 13% cut off.
has cast iron pistons, Babbit metal big end and bronze main
bearings. Variable lift sliding camshaft operated from top
initial opening of the engine for re-conditioning can be seen
The oil has been sent back to Morris Oils for recycling!
stripping and giving the project our diligent perusal and
a complete wash and brush up here is the engine parts below:
are only two timing wheels therefore the engine is almost
identical with the ordinary motorcycle power unit.
adjustments made where re-fitting of the big end bearings
and replacement of valve springs, all other components are
absolutely as constructed by Mr Field in 1908
below are some of the patterns made by Mr Field for production
of engine Number 1.
the left is original wooden pattern for top crank case half
engine number 1. and below is complete one-piece cylinder
block inlet, exhaust ports and valve stem guides cast with
permanent cylinder head, all designed to be machined from
original name plate